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Article #457

Problem with Tseng driver

#457
From: L. Peter Deutsch
Date: Mon, 05 Oct 1992 10:44
34 lines
2091 bytes
Re <9210050611.AA23816@cookie-crisp>
<gereckwl.718246651@craft.camp.clarkson.edu>:

> I have just installed gs version 252 on my system.  I am running it on a 486
> with 8 megs and a Tseng SVGA card with 1M.  I was previously running gs2372. 
> With this version I was able to run gs in 1024x768X256 mode with no problem
> using a BGI driver.  Now I am only able to get VGA output.  I have attempted
> to use the Tseng driver included with gs via the following command :
> 			
> 			gs386 -sDEVICE=tseng myfile.ps > foo
> 
> This command only gives me shabby VGA output.  My old BGI drivers do not work
> either.  I am sure I am overlooking some simple detail.  Could anyone point me 
> in the right direction please!  

The BGI driver is no longer included in the executables.  gs386 uses
a non-Borland compiler that does not support BGI, and I judged that
11K of non-overlayable RAM was too high a price to pay in the 16-bit
Borland executables for a driver that almost no one used.

The Tseng driver defaults to VGA resolution.  As the documentation
says, the switch
	-g1024x768
gives you 1024x768 output.  I agree it would be better to default to
the highest available resolution; I'm not sure if I can find this out
dynamically from the BIOS.

In addition, there is a bug in the Tseng driver in gs386 that may
cause it to produce garbled output.  If this occurs on your system,
use gs rather than gs386.

L. Peter Deutsch :: Aladdin Enterprises :: P.O. box 60264, Palo Alto, CA 94306
ghost@aladdin.com, ...decwrl!aladdin!ghost ; voice 415-322-0103 ; fax 322-1734
	    "Implementation is the sincerest form of flattery."
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From: ghost@aladdin.COM (L. Peter Deutsch)
Subject: Problem with Tseng driver
Message-ID: <9210050344.0.UUL1.3#5127@aladdin.com>
Sender: gnulists@ai.mit.edu
Organization: GNUs Not Usenet
Distribution: gnu
Date: Mon, 5 Oct 1992 10:44:31 GMT
Approved: bug-ghostscript@prep.ai.mit.edu
Lines: 38